Hibiscus Specifications â?¢ Moisture content 12% max. â?¢ Color Purple- Red â?¢ Extract content 41%min. â?¢ Protein content 5% max. â?¢ Ash & mineral salts 10% max â?¢ Impurities 2% max â?¢ Vitamins C (as cerbicacid) 80100mg/100gm. â?¢ Natural pigment more than 1 1/2mg/100grms. â?¢ Reducing sugar 12%max. â?¢ Hibiscus (Dry flower) Fiber 15%mini. â?¢ Carbohydrates - â?¢ Total acids 25----30% Dry Flower. Packing and Export Packing is usually done in PP bags 20~22 KG, and exported in 40 feet containers which will carry 12 metric tons.